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01.09.2016 | Thematic Issue | Ausgabe 18/2016

Environmental Earth Sciences 18/2016

TERENO-SOILCan: a lysimeter-network in Germany observing soil processes and plant diversity influenced by climate change

Zeitschrift:
Environmental Earth Sciences > Ausgabe 18/2016
Autoren:
Th. Pütz, R. Kiese, U. Wollschläger, J. Groh, H. Rupp, S. Zacharias, E. Priesack, H. H. Gerke, R. Gasche, O. Bens, E. Borg, C. Baessler, K. Kaiser, M. Herbrich, J.-C. Munch, M. Sommer, H.-J. Vogel, J. Vanderborght, H. Vereecken
Wichtige Hinweise
This article is part of a Topical Collection in Environmental Earth Sciences on ‘‘Water in Germany”, guest edited by Daniel Karthe, Peter Chifflard, Bernd Cyffka, Lucas Menzel, Heribert Nacken, Uta Raeder, Mario Sommerhäuser and Markus Weiler.

Abstract

The aim of TERENO (TERrestrial ENvironmental Observatories) is to collect long-term observation data on the hydrosphere, biosphere, pedosphere, lower atmosphere and anthroposphere along multiple spatial and temporal gradients in climate sensitive regions across Germany. The lysimeter-network SOILCan was installed as a part of TERENO between March and December 2010 within the four observatories. It represents a long-term large-scale experiment to study the effects of climate and management changes in terrestrial ecosystems, with particular focus on the impact of these changes on water, energy and matter fluxes into groundwater and atmosphere. SOILCan primarily focuses on soil hydrology, the carbon and nutrient cycle and plant species diversity. Time series measurements of states and fluxes at high spatial and temporal resolution in the soil and biosphere are combined with remote sensing information for the development and calibration of process-based models simulating impacts of climate change in soil processes at field to regional scale. Within the framework of SOILCan, 132 fully automated lysimeter systems were installed at 14 highly equipped experimental field sites across the four TERENO observatories. Relevant state variables of grassland and arable ecosystems are monitored characterizing climate, hydrology and matter fluxes into the atmosphere and within the hydrosphere as well as plant species diversity. Lysimeters are either being operated at or near their original sampling location or were transferred within or between the four TERENO observatories thereby using temperature and rainfall gradients to mimic future climatic conditions (space for time), which allow measuring impacts of climate change on terrestrial ecosystems. The lysimeters are cultivated as grassland (intensive, extensive and non-used) or arable land, the latter with a standardized crop rotation of winter wheat—winter barley—winter rye—oat. This publication describes the general design of the SOILCan experiment including a comprehensive description of the pedological characteristics of the different sites and presents a few exemplary results from the first years of operation.

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